Unpin polars

[larsevj]

Issue
Resolves #12218

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'just rapid-tests')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Add backport label to latest release (format: 'backport release-branch-name')

[larsevj]

Tests fail due to bug in polars, will need to wait for 1.26.1 release.

[larsevj]

Now it fails on the following issue:
pola-rs/polars#25732

Could maybe reevaluate if there are better ways of applying the transformations.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.64%. Comparing base (c528c39) to head (0a7c093).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12475      +/-   ##
==========================================
- Coverage   90.67%   90.64%   -0.04%     
==========================================
  Files         429      429              
  Lines       29803    29803              
==========================================
- Hits        27025    27015      -10     
- Misses       2778     2788      +10     

Flag	Coverage Δ
cli-tests	37.61% <ø> (+0.04%)	⬆️
gui-tests	69.35% <ø> (-0.06%)	⬇️
performance-and-unit-tests	73.91% <ø> (-0.02%)	⬇️
test	38.07% <ø> (ø)

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[codspeed-hq]

Merging this PR will not alter performance

✅ 22 untouched benchmarks

---

_{Comparing larsevj:unpin_polars (0a7c093) with main (c528c39)}

[Copilot]

Pull request overview

This PR unpins the polars library version constraint to allow upgrading from version 1.34.0 to 1.37.1, while excluding problematic versions 1.26.0 and 1.35.

Changes:

• Updated polars version constraint from >=1.32.3, <1.35 to >=1.32.3, !=1.35, !=1.26.0 in pyproject.toml
• Replaced deprecated return_dtype parameter in map_elements() calls with .cast() method calls (polars API change)
• Added defensive check to filter empty arrays in RFT configuration list comprehension
• Added column ordering normalization in DataFrame comparison utility function

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
uv.lock	Updates polars and polars-runtime-32 from 1.34.0 to 1.37.1
pyproject.toml	Relaxes polars version constraint to allow 1.37.1 while excluding problematic versions
tests/ert/ui_tests/cli/test_field_parameter.py	Removes unused Float32 import, replaces return_dtype with .cast(), adds column ordering fix
src/ert/storage/local_ensemble.py	Replaces return_dtype parameter with .cast() method
src/ert/gui/tools/manage_experiments/storage_info_widget.py	Replaces return_dtype parameter with .cast() method
src/ert/config/rft_config.py	Adds empty array check to prevent issues with polars concat

[frode-aarstad]

🚀

[frode-aarstad]

Will this need to be back-ported or mentioned in the release notes @xjules ?